Your new T sounds like a much better fit but I understand your dilemma. I saw my former T for almost 7 years and found it very difficult to break away from her because of my feelings for her. Does your "new T" know about your other one and how long you've been seeing her? Since you have a good connection with her I think that logically, she would be the one to help you in your decision and suggest how to go about it.

I know that when I started seeing my current T, I realized that I made the correct decision for me. She was more open with me, and had a completely different style from my former T, and any other T I had in the past. It will take time to "get over" the other T, though. At least it did for me. But now she doesn't mean much to me and when I see her in my community, I can talk to her normally!

The only concern I have (because I know you're a little like me) is that you will probably have the same strong transference feelings for your new T and they will cause you pain too. I don't mean to be negative, but we usually repeat our patterns with each T. I "fell in love with this one" as I did with the others, but because of her openness and different style, I'm coming to terms with the therapeutic relationship. Finally!

It sounds like you know what you want to do. Maybe make a list of the positives you got from your T and plan for a couple of "good-bye sessions" or at least one. Closure is important, especially in such a long-term therapy. I hope some of what I wrote helped you. I really think you will benefit from talking it over with your "new T" unless that's too scary for you and you're afraid she will judge you for seeing two Ts at once.